Custom Carbon Fiber Cross Beam

Lightweight Multi-Cell Gantry Beams for High-Speed and High-Precision Machinery

ANT COMPOSITES manufactures custom carbon fiber cross beams for CNC machines, laser cutting equipment, dispensing systems, industrial automation and precision motion platforms.

Our machine beams combine a closed multi-cell structure with application-specific carbon fiber reinforcement. Compared with conventional metal cross beams, an optimized CFRP design can reduce moving mass by more than 40% while maintaining the stiffness and dimensional stability required by high-speed equipment.

ProductCarbon fiber cross beam
StructureMulti-Cell Closed Box Structure
MaterialT300 Carbon Fiber Composite
Cross-Section173 × 95 mm to 241.5 × 185 mm / Custom
Length4.5 m Available; 7.5 m+ Custom
StraightnessUp to 0.01 mm/m
Manufacturing ProcessVacuum Infusion & High-Temperature Curing
CustomizationInserts, Mounting Holes, Internal Structure & CNC Machining
Description

The Problem With Traditional Beams

Engineered from the Inside Out

Closed Box Shell

High-strength carbon fiber skins deliver torsional rigidity and impact resistance.

Internal Reinforcing Webs

Optimized web layout controls shear and prevents local buckling.

Multi-Cell Structure

Increases stiffness and stability while reducing mass.

Precision Mounting Face

CNC-machined surfaces ensure perfect alignment and repeatability.

Built for Dynamic Machine Performance

Faster Response

Lower inertia for higher acceleration and throughput.

Stable Precision

High stiffness maintains accuracy at high speed.

Lower Thermal Drift

Carbon fiber’s low CTE minimizes thermal expansion.

Reduced Drive Load

Lower mass reduces wear and extends component life.

carbon fiber gantry cross beam used in an industrial inspection machine
precision mounting surface and holes on carbon fiber cross beam

Precision Interfaces, Ready for Integration

CNC Machining

Flatness, parallelism, and squareness within tight tolerances.

Linear Guide Interfaces

Precision reference surfaces for smooth linear motion.

Metal Inserts

Threaded inserts for secure, repeatable fastening.

Custom Hole Patterns

Tailored mounting and dowel holes to match your design.

Product Series

CFB-A Machine Beam

Material T300
Section Range 173×95–241.5×185 mm
Length Up to 4.5 m
Weight (Ref.) 15 kg

CFB-B Dispensing Beam

Material T300
Section Height 85.3 mm
Length Up to 4.5 m
Weight (Ref.) 10 kg

Applications

Real Results. Real Impact.

Have a project in mind? Let's talk.


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    Frequently Asked Questions

    1. How much weight can a carbon fiber cross beam reduce?

    Our general positioning is more than 40% weight reduction compared with conventional metal beams. Actual results depend on the original beam and final CFRP design. Individual customer projects have achieved reductions above 64% and 76%.

    2. Can the beam support 6G acceleration?

    The CFB-A17395-S2 reference configuration has supported a qualified 6G application. This does not mean every beam is automatically rated for 6G. Beam length, payload, connections and the complete machine must be evaluated.

    3. What straightness can you achieve?

    Qualified beam designs can achieve straightness down to 0.01 mm/m. The achievable value depends on length, mounting surfaces and inspection requirements.

    4. What is the maximum available length?

    Selected 4.5-meter specifications are available, and production lengths above 7.5 meters can be evaluated for volume projects.

    5. Can you machine linear-guide mounting surfaces?

    Yes. Surface machining, guide holes, positioning holes and insert installation can be discussed. Required flatness, straightness and parallelism must be stated on the drawing.

    6. Can you replace our current aluminum or steel beam?

    Send us the current drawing, material, weight and working conditions. We will review the technical feasibility and potential machine-level benefits.